# assert/lte
Assert `a <= b` for numbers. Used inside `deftest` blocks.
## Syntax
[assert/lte $a $b]
## Parameters
- `$a` — number that should be less or equal.
- `$b` — number to compare against.
## Examples
[assert/lte $idx $max] [assert/lte $age 65]
## Returns
`true` on success; raises a runtime error on failure.
## See Also
`assert/lt`, `assert/gte`, `deftest`